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Commit 2f2d0088 authored by Shuah Khan's avatar Shuah Khan Committed by Greg Kroah-Hartman
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usbip: prevent vhci_hcd driver from leaking a socket pointer address



When a client has a USB device attached over IP, the vhci_hcd driver is
locally leaking a socket pointer address via the

/sys/devices/platform/vhci_hcd/status file (world-readable) and in debug
output when "usbip --debug port" is run.

Fix it to not leak. The socket pointer address is not used at the moment
and it was made visible as a convenient way to find IP address from socket
pointer address by looking up /proc/net/{tcp,tcp6}.

As this opens a security hole, the fix replaces socket pointer address with
sockfd.

Reported-by: default avatarSecunia Research <vuln@secunia.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: default avatarShuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c6688ef9
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